Plants for Sandy Or Gravelly Soil
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Mise Au Point D'une Méthode De Détection
Caractérisation des agents phytopathogènes responsables des pertes de la filière ail : mise au point d’une méthode de détection Paul L. Chretien To cite this version: Paul L. Chretien. Caractérisation des agents phytopathogènes responsables des pertes de la filière ail : mise au point d’une méthode de détection. Sciences agricoles. Université d’Avignon, 2021. Français. NNT : 2021AVIG0363. tel-03211009 HAL Id: tel-03211009 https://tel.archives-ouvertes.fr/tel-03211009 Submitted on 28 Apr 2021 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE DE DOCTORAT D’AVIGNON UNIVERSITÉ Ecole Doctorale 536 Agrosciences & Sciences Spécialité / Discipline de doctorat : BIOLOGIE Laboratoire Pathologie Végétale – INRAE PACA Présentée par Paul Chrétien Caractérisation des agents phytopathogènes responsables des pertes de la filière ail Mise au point d’une méthode de détection Soutenue publiquement le 18/02/2021 devant le jury composé de : Marie-Hélène Balesdent, Directrice de recherche, INRAE Rapporteure Philippe Reignault, Professeur, ANSES Rapporteur François Lecompte, Chargé de recherche, INRAE Examinateur Frédéric Suffert, Ingénieur de recherche, INRAE Examinateur Christel Leyronas, Ingénieure de recherche, INRAE Directrice de thèse Cindy Morris, Directrice de recherche, INRAE Directrice de thèse Céline Vézian, Responsable R&D, Alinéa coopérative Invitée À toi qui retombera sur ces pages. -
A Taxonomic Re-Evaluation of the Allium Sanbornii Complex
University of the Pacific Scholarly Commons University of the Pacific Theses and Dissertations Graduate School 1986 A taxonomic re-evaluation of the Allium sanbornii complex Stella Sue Denison University of the Pacific Follow this and additional works at: https://scholarlycommons.pacific.edu/uop_etds Part of the Biology Commons Recommended Citation Denison, Stella Sue. (1986). A taxonomic re-evaluation of the Allium sanbornii complex. University of the Pacific, Thesis. https://scholarlycommons.pacific.edu/uop_etds/2124 This Thesis is brought to you for free and open access by the Graduate School at Scholarly Commons. It has been accepted for inclusion in University of the Pacific Theses and Dissertations by an authorized administrator of Scholarly Commons. For more information, please contact [email protected]. A TAXONOMIC RE-EVALUATION OF THE ALLIUM SANBORNII COMPLEX A Thesis Presented to the Faculty of the Graduate School University of the Pacific In Partial Fulfillment of the Requirements for the Degree Master of Science by Stella S. Denison August 1986 ACKNOWLEDGMENTS Many contributions have been made for my successful completion of this work. Appreciation is extended to: Drs. Dale McNeal, Alice Hunter, and Anne Funkhouser for their advice and assistance during the research and in the preparation of this manuscript, the entire Biology faculty for their, friendship and suggestions, Ginger Tibbens for the typing of this manuscript, and to my husband, Craig, and my children, Amy, Eric and Deborah for their continued support and encouragement. Grateful acknowledgement is made to the curators of the herbaria from which material was borrowed during this investigation. These herbaria are indicated below by the standard abbreviations of Holmgren and Keuken (1974}. -
Conifer Communities of the Santa Cruz Mountains and Interpretive
UNIVERSITY OF CALIFORNIA, SANTA CRUZ CALIFORNIA CONIFERS: CONIFER COMMUNITIES OF THE SANTA CRUZ MOUNTAINS AND INTERPRETIVE SIGNAGE FOR THE UCSC ARBORETUM AND BOTANIC GARDEN A senior internship project in partial satisfaction of the requirements for the degree of BACHELOR OF ARTS in ENVIRONMENTAL STUDIES by Erika Lougee December 2019 ADVISOR(S): Karen Holl, Environmental Studies; Brett Hall, UCSC Arboretum ABSTRACT: There are 52 species of conifers native to the state of California, 14 of which are endemic to the state, far more than any other state or region of its size. There are eight species of coniferous trees native to the Santa Cruz Mountains, but most people can only name a few. For my senior internship I made a set of ten interpretive signs to be installed in front of California native conifers at the UCSC Arboretum and wrote an associated paper describing the coniferous forests of the Santa Cruz Mountains. Signs were made using the Arboretum’s laser engraver and contain identification and collection information, habitat, associated species, where to see local stands, and a fun fact or two. While the physical signs remain a more accessible, kid-friendly format, the paper, which will be available on the Arboretum website, will be more scientific with more detailed information. The paper will summarize information on each of the eight conifers native to the Santa Cruz Mountains including localized range, ecology, associated species, and topics pertaining to the species in current literature. KEYWORDS: Santa Cruz, California native plants, plant communities, vegetation types, conifers, gymnosperms, environmental interpretation, UCSC Arboretum and Botanic Garden I claim the copyright to this document but give permission for the Environmental Studies department at UCSC to share it with the UCSC community. -
Developing Species-Habitat Relationships: 2016 Project Report
Field Keys to Groups and Alliances in the National Vegetation Classification: Northern Basin & Range / Columbia Plateau Ecoregions NatureServe Conservation Science Division P r i n c i p a l Investigator Patrick J. C o m e r , Chief Ecologist [email protected] 703.797.4802 November 2017 Photos (clockwise from top left; all used under Creative Commons license CC BY 2.0.): Big sage shrubland, Humboldt-Toiyabe National Forest, Nevada. USDA Photo by Susan Elliot. http://flic.kr/p/ax64DY Jeffrey pine woodland, photo by David Prasad. https://www.flickr.com/photos/33671002@N00 Northwest Great Plains Mixedgrass Prairie, Dakota Prairie National Grasslands, North Dakota. Western juniper woodland, BLM Black Hills Recreation Area, Oregon. Acknowledgements This work was completed with funding provided by the Bureau of Land Management through the BLM’s Fish, Wildlife and Plant Conservation Resource Management Program under Cooperative Agreement L13AC00286 between NatureServe and the BLM. Suggested citation: Schulz, K., G. Kittel, M. Reid and P. Comer. 2017. Field Keys to Divisions, Macrogroups, Groups and Alliances in the National Vegetation Classification: Northern Basin & Range / Columbia Plateau Ecoregions. Report prepared for the Bureau of Land Management by NatureServe, Arlington VA. 14p + 58p of Keys + Appendices. See appendix document: Descriptions_NVC_Groups_Alliances_ NorthernBasinRange_Nov_2017.pdf 2 | P a g e Contents Introduction and Background ...................................................................................................................... -
These Native Plants Grow Wild in Or Near Los Altos Hills and Will Grow Easily in Your Garden
Los Altos Hills Native Plant List These native plants grow wild in or near Los Altos Hills and will grow easily in your garden. Botanical Name Common Name Foliage Water Use Percent of ETo Trees Acer macrophyllum Big-leaf Maple deciduous moderate 40-60 Aesculus calironica California Buckeye early deciduous very low < 10 Arbutus menziesii Madrone evergreen low 10-30 Notholithocarpus desiflora Tanbark Oak evergreen low 10-30 Platanus racemosa Western Sycamore deciduous moderate 40-60 Populus fremontii Fremont Cottonwood deciduous moderate 40-60 Pseudotsuga menziesii Douglas Fir evergreen low 10-30 Quercus agrifolia Coast Live Oak evergreen very low < 10 Quercus chrysolepis Canyon Oak evergreen very low < 10 Quercus douglassi Blue Oak deciduous very low < 10 Quercus kelloggii California Black Oak deciduous low 10-30 Quercus lobata Valley Oak deciduous low 10-30 Sambucus caerulea Mexican Elderberry deciduous low 10-30 Sequoia sempervirens Coast Redwood evergreen high 70-90 Torreya californica California Nutmeg evergreen low 10-30 Umbellularia californica California Bay evergreen moderate 40-60 Shrubs Amelanchier pallida Serviceberry deciduous Arctostaphylos andersonii* Heart-leaved Manzanita evergreen Arctostaphylos glauca* Big-berried Manzanita evergreen very low < 10 Arcrtostaphylos dr hurd Dr. Hurd Manzanita evergreen low 10-30 Baccharis pilularis* Dwarf Coyote Bush evergreen low 10-30 Ceanothus cuneatus* Common Buck Brush evergreen very low < 10 Ceanothus thyrsiflorus* Blue Brush evergreen low 10-30 Ceanothus (many species) low 10-30 Cercis -
Native Plants
Spring 2018 This issue of Shore Stewards News focuses on the many benefits of native plants. The newsletter content is from garden writer and retired WSU Extension Educator Peg Tillery, and provided by Renee Johnson. Renee is the Shore Stewards Coordinator for Kitsap County. Island County content is provided by Ann Precup and Scott Chase. Native Plants at Work in Your Landscape Native plants are ideal for home gardens: at the same time they provide diversity to a landscape, they can also create a habitat for wildlife. Native plants are mostly disease and pest free and usually survive very happily in our relatively wet winters and springs with drought-like summer months from mid-July through mid-October most years. Native plants rarely, if ever, need fertilizer. In our region where fungi and molds happen naturally, native plants can have diseases and conditions, but they usually don’t succumb to these problems. The various fungi and phytophthoras that attack our madrones are an example. Newly planted natives also need regular watering their first two to three years until they’re established in a landscape. Tall Oregon Grape Mahonia aquafolium Photo Credit: http://www.nwplants.com / CC BY-SA 3.0 A few of the native favorites include: Oceanspray (Holodiscus discolor); Salal (Gaultheria shallon); Douglas fir (Pseudotsuga menziesii); Pacific Madrone (Arbutus menziesii); Pacific dogwood (Cornus nuttallii); Mock orange (Philadelphus lewisii); Pacific Ninebark (Physocarpus capitatus); twinflower (Linnaea borealis); Mahonia (Oregon Grape); Trillium; Red Huckleberry (Vaccinium parvifolium); Evergreen Huckleberry (Vaccinium ovatum); Red Elderberry (Sambucus racemosa); Salmonberry (Rubus spectabilis); Vine Maple (Acer circinatum); Sword fern (Polystichum munitum), Bracken fern (Pteridium aquilinum), Lady fern (Athyrium filix-femina) and Red-Flowering Currant (Ribes sanguineum). -
Canyons of the Ancients National Monument Plant List by Genus
Canyons of the Ancients National Monument Plant List Please send all corrections and updates to Al Schneider, [email protected] Updated 6/2011 Scientific Name Common name Family Abronia fragrans Sand-verbena Nyctaginaceae Achillea lanulosa Western yarrow Asteraceae Achnatherum hymenoides Indian ricegrass Poaceae Achnatherum speciosum Showy needle grass Poaceae Acosta diffusa Tumble knapweed Asteraceae Acosta maculosa Spotted knapweed Asteraceae Acrolasia albicaulis Whitestem blazingstar Loasaceae Acroptilon repens Russian knapweed Asteraceae Adenolinum lewisii Blue Flax Linaceae Adiantum capillus-veneris Venus' hair fern Adiantaceae Agropyron cristatum Crested wheatgrass Poaceae Agrostis scabra Rough bentgrass Poaceae Agrostis stolonifera Redtop bentgrass Poaceae Allium acuminatum Tapertip onion Alliaceae Allium macropetalum Largeflower wild onion Alliaceae Allium textile Textile onion Alliaceae Alyssum minus Yellow alyssum Brassicaceae Amaranthus blitoides Prostrate pigweed Amaranthaceae Amaranthus retroflexus Redroot amaranth Amaranthaceae Ambrosia acanthicarpa Flatspine burr ragweed Asteraceae Ambrosia trifida great ragweed Asteraceae Amelanchier alnifolia? Saskatoon serviceberry Rosaceae Amelanchier utahensis Utah serviceberry Rosaceae Amsonia jonesii Jones's bluestar Apocynaceae Androsace occidentalis Western rockjasmine Primulaceae Androsace septentrionalis Pygmyflower rockjasmine Primulaceae Androstephium breviflorum Pink funnellily Alliaceae Anisantha tectorum Cheatgrass Poaceae Antennaria rosulata Rosy pussytoes Asteraceae -
Vegetation of the Douglas-Fir Region
Vegetation Of The Douglas-Fir Region Purchased by the Forest Service, U.S. Department of Agriculture J. F. Franklin, Chief Plant Ecologist, PNW Forest and Range for official use. Experiment Station, U.S. Forest Service, Corvallis, Oregon Reprinted from "Forest Soils of the Douglas-Fir Region,": a book developed by the members of the Northwest Forest Soils Council; published in 1979 by Washington State University Cooperative Extension; compiled and edited by Paul E. Heilman, Harry W. Anderson, and David M. Baum gartner. Copies of this book may be purchased from: Conference Of- fice, Cooperative Extension, WSU, Pullman, WA 99164 CHAPTER IV VEGETATION OF THE DOUGLAS-FIR REGION Jerry F. Franklin The Douglas-fir region of western Washington and array of potentially productive tree species as alternatives or Oregon and northwestern California is one of the most associates to Douglas-fir. densely forested areas of the world. It represents maximal development of the temperate coniferous forest. The region These large. long-lived species dominate dense forests is well known for the extensive areas dominated by Douglas- rather than occurring as isolated individuals. Consequently. fir, with climax forests of western hemlock and western old-growth ecosystems in this region have the greatest bio- redcedar, and coastal "rain forests" of coast redwood and mass accumulations of any plant formations in the temperate Sitka spruce. In this chapter I will attempt to outline major zone and, probably, the world. Coast redwood stands are, of compositional, structural, and successional features of these course, the star of the show with biomass accumulations of varied and productive forests. -
Starflower Image Herbarium Flowering Deciduous Shrubs and Small Trees, A-L
Starflower Image Herbarium & Landscaping Pages Flowering Deciduous Shrubs and Small Trees, A-L – pg.1 Starflower Image Herbarium Flowering Deciduous Shrubs and Small Trees, A-L © Starflower Foundation, 1996-2007 Washington Native Plant Society These species pages has been valuable and loved for over a decade by WNPS members and the PNW plant community. Untouched since 2007, these pages have been archived for your reference. They contain valuable identifiable traits, landscaping information, and ethnobotanical uses. Species names and data will not be updated. To view updated taxonomical information, visit the UW Burke Herbarium Image Collection website at http://biology.burke.washington.edu/herbarium/imagecollection.php. For other useful plant information, visit the Native Plants Directory at www.wnps.org. Compiled September 1, 2018 Starflower Image Herbarium & Landscaping Pages Flowering Deciduous Shrubs and Small Trees, A-L – pg.2 Contents Acer circinatum ....................................................................................................................................................................... 3 Vine Maple .......................................................................................................................................................................... 3 Amelanchier alnifolia ............................................................................................................................................................. 5 Serviceberry, Saskatoon ..................................................................................................................................................... -
Vegetation Descriptions NORTH COAST and MONTANE ECOLOGICAL PROVINCE
Vegetation Descriptions NORTH COAST AND MONTANE ECOLOGICAL PROVINCE CALVEG ZONE 1 December 11, 2008 Note: There are three Sections in this zone: Northern California Coast (“Coast”), Northern California Coast Ranges (“Ranges”) and Klamath Mountains (“Mountains”), each with several to many subsections CONIFER FOREST / WOODLAND DF PACIFIC DOUGLAS-FIR ALLIANCE Douglas-fir (Pseudotsuga menziesii) is the dominant overstory conifer over a large area in the Mountains, Coast, and Ranges Sections. This alliance has been mapped at various densities in most subsections of this zone at elevations usually below 5600 feet (1708 m). Sugar Pine (Pinus lambertiana) is a common conifer associate in some areas. Tanoak (Lithocarpus densiflorus var. densiflorus) is the most common hardwood associate on mesic sites towards the west. Along western edges of the Mountains Section, a scattered overstory of Douglas-fir often exists over a continuous Tanoak understory with occasional Madrones (Arbutus menziesii). When Douglas-fir develops a closed-crown overstory, Tanoak may occur in its shrub form (Lithocarpus densiflorus var. echinoides). Canyon Live Oak (Quercus chrysolepis) becomes an important hardwood associate on steeper or drier slopes and those underlain by shallow soils. Black Oak (Q. kelloggii) may often associate with this conifer but usually is not abundant. In addition, any of the following tree species may be sparsely present in Douglas-fir stands: Redwood (Sequoia sempervirens), Ponderosa Pine (Ps ponderosa), Incense Cedar (Calocedrus decurrens), White Fir (Abies concolor), Oregon White Oak (Q garryana), Bigleaf Maple (Acer macrophyllum), California Bay (Umbellifera californica), and Tree Chinquapin (Chrysolepis chrysophylla). The shrub understory may also be quite diverse, including Huckleberry Oak (Q. -
Northern Coastal Scrub and Coastal Prairie
GRBQ203-2845G-C07[180-207].qxd 12/02/2007 05:01 PM Page 180 Techbooks[PPG-Quark] SEVEN Northern Coastal Scrub and Coastal Prairie LAWRENCE D. FORD AND GREY F. HAYES INTRODUCTION prairies, as shrubs invade grasslands in the absence of graz- ing and fire. Because of the rarity of these habitats, we are NORTHERN COASTAL SCRUB seeing increasing recognition and regulation of them and of Classification and Locations the numerous sensitive species reliant on their resources. Northern Coastal Bluff Scrub In this chapter, we describe historic and current views on California Sagebrush Scrub habitat classification and ecological dynamics of these ecosys- Coyote Brush Scrub tems. As California’s vegetation ecologists shift to a more Other Scrub Types quantitative system of nomenclature, we suggest how the Composition many different associations of dominant species that make up Landscape Dynamics each of these systems relate to older classifications. We also Paleohistoric and Historic Landscapes propose a geographical distribution of northern coastal scrub Modern Landscapes and coastal prairie, and present information about their pale- Fire Ecology ohistoric origins and landscapes. A central concern for describ- Grazers ing and understanding these ecosystems is to inform better Succession stewardship and conservation. And so, we offer some conclu- sions about the current priorities for conservation, informa- COASTAL PRAIRIE tion about restoration, and suggestions for future research. Classification and Locations California Annual Grassland Northern Coastal Scrub California Oatgrass Moist Native Perennial Grassland Classification and Locations Endemics, Near-Endemics, and Species of Concern Conservation and Restoration Issues Among the many California shrub vegetation types, “coastal scrub” is appreciated for its delightful fragrances AREAS FOR FUTURE RESEARCH and intricate blooms that characterize the coastal experi- ence. -
This File Was Created by Scanning the Printed Publication
This file was created by scanning the printed publication. Text errors identified by the software have been corrected; however, some errors may remain. Editors SHARON E. CLARKE is a geographer and GIS analyst, Department of Forest Science, Oregon State University, Corvallis, OR 97331; and SANDRA A. BRYCE is a biogeographer, Dynamac Corporation, Environmental Protection Agency, National Health and Environmental Effects Research Laboratory, Western Ecology Division, Corvallis, OR 97333. This document is a product of cooperative research between the U.S. Department of Agriculture, Forest Service; the Forest Science De- partment, Oregon State University; and the U.S. Environmental Protection Agency. Cover Artwork Cover artwork was designed and produced by John Ivie. Abstract Clarke, Sharon E.; Bryce, Sandra A., eds. 1997. Hierarchical subdivisions of the Columbia Plateau and Blue Mountains ecoregions, Oregon and Washington. Gen. Tech. Rep. PNW-GTR-395. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 114 p. This document presents two spatial scales of a hierarchical, ecoregional framework and provides a connection to both larger and smaller scale ecological classifications. The two spatial scales are subregions (1:250,000) and landscape-level ecoregions (1:100,000), or Level IV and Level V ecoregions. Level IV ecoregions were developed by the Environmental Protection Agency because the resolution of national-scale ecoregions provided insufficient detail to meet the needs of state agencies for estab- lishing biocriteria, reference sites, and attainability goals for water-quality regulation. For this project, two ecoregions—the Columbia Plateau and the Blue Mountains— were subdivided into more detailed Level IV ecoregions.